| /*! |
| * \file sketch_support.h |
| * |
| * \brief header file for sketch support routines |
| */ |
| #ifndef SKETCH_SUPPORT_H |
| #define SKETCH_SUPPORT_H |
| |
| #define MD5_HASHLEN 16 |
| #define MD5_HASHLEN_BITS 8*MD5_HASHLEN /*! md5 hash length in bits */ |
| |
| #ifndef MAXINT8LEN |
| #define MAXINT8LEN 25 /*! number of chars to hold an int8 */ |
| #endif |
| |
| #ifndef CHAR_BIT |
| #include <limits.h> |
| #endif |
| |
| Datum array_set_bit_in_place(bytea *, int32, int32, int32, int32); |
| uint32 rightmost_one(uint8 *, size_t, size_t, size_t); |
| uint32 leftmost_zero(uint8 *, size_t, size_t, size_t); |
| uint32 ui_rightmost_one(uint32 v); |
| void hex_to_bytes(char *hex, uint8 *bytes, size_t); |
| void bit_print(uint8 *c, int numbytes); |
| Datum md5_cstring(char *); |
| bytea *sketch_md5_bytea(Datum, Oid); |
| int32 safe_log2(int64); |
| void int64_big_endianize(uint64 *, uint32, bool); |
| |
| /*! macro to convert a pointer into a marshalled array of Datums into a Datum */ |
| #define PointerExtractDatum(x, byVal) (byVal ? (*(Datum *)x) : (PointerGetDatum(x))) |
| /*! macro to convert a Datum into a pointer suitable for memcpy */ |
| #define DatumExtractPointer(x, byVal) (byVal ? (void *)&x : DatumGetPointer(x)) |
| |
| size_t ExtractDatumLen(Datum x, int len, bool byVal, size_t capacity); |
| #endif /* SKETCH_SUPPORT_H */ |
